﻿// 
//    Copyright 2010 The JaernCloud Project
// 
//    Licensed under the Apache License, Version 2.0 (the "License");
//    you may not use this file except in compliance with the License.
//    You may obtain a copy of the License at
// 
//        http://www.apache.org/licenses/LICENSE-2.0
// 
//    Unless required by applicable law or agreed to in writing, software
//    distributed under the License is distributed on an "AS IS" BASIS,
//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//    See the License for the specific language governing permissions and
//    limitations under the License.
// 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace JaernCloud.Language.Compiler.Ast {
    
    public enum AstOperator {
        Add,
        Subtract,
        Divide,
        Times,
        Increment,
        Decrement
    }

    public enum AstRelationalOperator {
        Equal,
        NotEqual
    }

    public static class AstOperatorExtensions {

        public static string AsString(this AstRelationalOperator astOperator) {
            switch (astOperator) {
                case AstRelationalOperator.Equal:
                    return "==";
                case AstRelationalOperator.NotEqual:
                    return "!=";
                default:
                    return String.Empty;
            }
        }

        public static string AsString(this AstOperator astOperator) {
            switch (astOperator) {
                case AstOperator.Add:
                    return " + ";
                case AstOperator.Subtract:
                    return " - ";
                case AstOperator.Divide:
                    return " / ";
                case AstOperator.Increment:
                    return "++";
                case AstOperator.Decrement:
                    return "--";
                default:
                    return String.Empty;
            }
        }

    }
}
